Interesting SEGV crash in native malloc followed by a number of secondary SIGILL crashes!
Have to suspect some kind of system issue.

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007fff684f5ea7, pid=70151, tid=17411
#
# JRE version: Java(TM) SE Runtime Environment (18.0+15) (fastdebug build 18-ea+15-807)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 18-ea+15-807, mixed mode, sharing, compressed oops, compressed class ptrs, g1 gc, bsd-amd64)
# Problematic frame:
# C [libsystem_malloc.dylib+0x1eea7]
[error occurred during error reporting (printing problematic frame), id 0x4, SIGILL (0x4) at pc=0x00007fff6851d63c]